Paper-making machine.



No. 7I2,038. Patented Oct. 28,. 1902,

T. A. BOYNE. PAPER MAKING MACHINE. (Application flIed June 14, 1902.) (No Model.) 2 Sheets-Sheet I.

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N0. 712,038. Patented Oct. 28, I902.

T. A. BOYNE. PAPER MAKING MACHINE.

(Application filed June 14, 1902.) (No Model.) 2 Sheets-Shoat 2.

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' 'NITED STATES PATENT OFFICE;

THOMAS A. BOYNE, OF LEE, MASSACHUSETTS.

PAPER-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 712,038, dated October 28, 1902.

Application filed June 14,1902. Serial No. 111,674. (No model.)

1'0 all whom it may concern: I

Be it known that I, THOMAS A. BOYNE, a citizen of the United States, residing at Lee,

. in the county of Berkshire and State of Massachusetts, have invented a new and useful Paper-Making Machine, of which the following is a specification.

This invention relates generally to papermaking machines of the Fourdrinier type, and particularlyto mechanism for effecting exact and automatic regulation of the flow or feed of water to the screen.

The objectof the invention is in a simple, feasible, thoroughly practical, and ready manner to improve the output of a paper-making machine as to uniformity and quality.

A further object is to render unnecessary the employment of an attendant to effect the object sought.

With these and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a paper-making machine, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification and in which like numerals of reference indicate corresponding parts, there is illustrated one form of embodiment of the invention capable of carrying the invention into practical operation, it being understood that the elements therein exhibited may be varied or changed as to shape, proportion, and exact manner of assemblage Without departing from the spirit thereof, and in these drawings' Figure 1 is a view in side elevation, exhibiting a portion of a paper-making machine equipped with the improvements of the present invention. Fig. 2 is a view, somewhat in the nature of a diagram, exhibiting the operative connection between the device of the present invention and the paper-making machine.

Before describing the different parts of the invention it is desired briefly to summarize some of the important features thereof.

The device of this invention is adapted positively to regulate the proper amount of water needed on the wire over the tube=rolls, thus to insure a well-found, uniform, and well-closed sheet of paper.

As will hereinafter appear, when the machine-tender starts up the machine and adjusts the hand-wheel in the flow-box to allow the proper amount of water to mix with the stufi. and flow onto the wire to effect the presentation of a properly-formed sheet the device of this invention automatically continues to supply the same amount of water until the hand-wheel is again adjusted, and thus relieves the machine-tender of the necessity of constantly watching and regulating the flow of water. As the water in the vat under the screen rises the device of this invention operates proportionately to decrease the feed of water, and if the water in the vat lowers the said device operates proportionately to increase the feed of water, thereby under all conditions to cause the supply of water to be sufficient for effecting a uniform output from the machine. As will be apparent, it is a desideratum in this as in other machines to accomplish the object sought in the most simple and direct manner, and as will hereinafter appear the devices of this invention secure the best results in a way that is at once practical and feasible.

There is illustrated in the drawings enough of the parts of an ordinary Fourdrinier machine to enable the operation of the present invention to be understood, and as these per se form no part of the invention detailed description thereof will be omitted.

In the machine exhibited 1 designates the ordinary vat, containing a screen 2, and 3 a pipe leading from below the screen and connecting with a float-box 4, which, together with the parts coacting therewith, constitutes the gist of the present invention. There is provided, as usual, a suction-pump 5, which connects through a pipe 6 with the ordinary suction-box. This suction-pump connects through pipes 7 and S with the fan-pump box 9 and the latter through a conduit including thefan with the mixing-box 11. The flowbox 12 has associated with it, as usual, ahandwheel 13 by which to regulate the supply of water to the stuff.

Within the float-box 4 is arranged a float 14, with which is connected a rod 15, having its lower end adjustably associated with a lever 16, connected with a valve 17, carried by the pipe 8, and it is by this valve, which is automatically controlled, that the water in the vat is kept at a predetermined level corresponding to that in the float-box. The connection between the rod and lever 16 may be efiected in any preferred manner, and therefore needs no detailed illustration.

Under the operation of the machine the suction-pump operates continuously and supplies a predetermined flow of water to the vat. As the level of the water in the vat rises and falls like motion will be imparted to the float, which will eflect opening and closing of the valve 16 automatically, and thus prevent overflow, the bottom of the float-box being approximately on a level with that of the vat. It will be seen that as the flow of water through the pipe 7 is checked by the valve 17 it will be necessary to provide for the escape of the water held back; otherwise bursting of the said pipe or of the cylinder of the pump might ensue. To effect this an escape or overflow pipe 18 is provided, which connects with the pipe 7 adjacent to the pump and is preferably goosenecked, its discharge end leading to a sewer-pipe or other oit'take. By this arrangemeut the suction-pump requires no attention when the volume of water supplied to the screen is diminished, thereby rendering the operation of the machine automatic.

It will be seen from the foregoing description that although the improvements herein defined are exceedingly simple in character they will be thoroughly efiicient in use for the purpose designed and may be associated With an ordinary paper-making machine at a slight expense, the only added parts being the pipe 3, float-box 4, fioat 14, rod 15, valve and lever 16 and 17, respectively, and overflow-pipe 18.

Having thus fully described myinventiou, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a paper-making machine, a pump, a vat, a pipe connecting the pump and the vat, a valve on the pipe, a float-box having its bottom substantially in the same plane as that of the vat, a pipe connecting the vat and the float-box, a float, and a connection between the float and the valve.

2. In a paper-making machine, the combination of a pump, a supply-pipe connecting the pump and the machine, an automaticallyactuated Valve for controlling the passage of water through the pipe, and an escape-pipe communicating with the supply-pipe between the pump and the valve.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

THOMAS A. BOYNE.

Witnesses:

ALBERT B. CLARK, BART. BAssIDY. 

